php发送get、post请求的6种方法简明总结

方法1: 用file_get_contents 以get方式获取内容：

?

1 2 3 4 5

<?php $url='http://www.jb51.net/'; $html = file_get_contents($url); echo $html; ?>

方法2: 用fopen打开url, 以get方式获取内容：

?

1 2 3 4 5 6 7 8 9

<?php $fp = fopen($url, ‘r'); stream_get_meta_data($fp); while(!feof($fp)) { $result .= fgets($fp, 1024); } echo “url body: $result”; fclose($fp); ?>

方法3：用file_get_contents函数,以post方式获取url

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

<?php $data = array (‘foo' => ‘bar'); $data = http_build_query($data);   $opts = array ( ‘http' => array ( ‘method' => ‘POST', ‘header'=> “Content-type: application/x-www-form-urlencodedrn” . “Content-Length: ” . strlen($data) . “rn”, ‘content' => $data ) );   $context = stream_context_create($opts); $html = file_get_contents(‘http://localhost/e/admin/test.html', false, $context);   echo $html; ?>

方法4：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

<?php function get_url ($url,$cookie=false) { $url = parse_url($url); $query = $url[path].”?”.$url[query]; echo “Query:”.$query; $fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30); if (!$fp) { return false; } else { $request = “GET $query HTTP/1.1rn”; $request .= “Host: $url[host]rn”; $request .= “Connection: Closern”; if($cookie) $request.=”Cookie:  $cookien”; $request.=”rn”; fwrite($fp,$request); while(!@feof($fp)) { $result .= @fgets($fp, 1024); } fclose($fp); return $result; } } //获取url的html部分，去掉header function GetUrlHTML($url,$cookie=false) { $rowdata = get_url($url,$cookie); if($rowdata) { $body= stristr($rowdata,”rnrn”); $body=substr($body,4,strlen($body)); return $body; }   return false; } ?>

方法5：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

<?php function HTTP_Post($URL,$data,$cookie, $referrer=”") {   // parsing the given URL $URL_Info=parse_url($URL);   // Building referrer if($referrer==”") // if not given use this script as referrer $referrer=”111″;   // making string from $data foreach($data as $key=>$value) $values[]=”$key=”.urlencode($value); $data_string=implode(“&”,$values);   // Find out which port is needed � if not given use standard (=80) if(!isset($URL_Info["port"])) $URL_Info["port"]=80;   // building POST-request: $request.=”POST “.$URL_Info["path"].” HTTP/1.1n”; $request.=”Host: “.$URL_Info["host"].”n”; $request.=”Referer: $referern”; $request.=”Content-type: application/x-www-form-urlencodedn”; $request.=”Content-length: “.strlen($data_string).”n”; $request.=”Connection: closen”;   $request.=”Cookie:  $cookien”;   $request.=”n”; $request.=$data_string.”n”;   $fp = fsockopen($URL_Info["host"],$URL_Info["port"]); fputs($fp, $request); while(!feof($fp)) { $result .= fgets($fp, 1024); } fclose($fp);   return $result; }   ?>

方法6:使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展

?

1 2 3 4 5 6 7 8 9 10 11

<?php $ch = curl_init(); $timeout = 5; curl_setopt ($ch, CURLOPT_URL, ‘http://www.jb51.net/'); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch);   echo $file_contents; ?>